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प्रश्न
A simple barometer was first constructed by _______.
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उत्तर
A simple barometer was first constructed by Torricelli.
APPEARS IN
संबंधित प्रश्न
The instrument used to measure atmospheric pressure is ______.
Describe the construction and working of mercury barometer.
Higher Order Thinking Skill.
How high does the mercury barometer stand on a day when atmospheric pressure is 98.6 kPa?
A mercury drop of radius 'R' is divided into 27 droplets of same size. The radius 'r' of each droplet is ______.
When a mercury drop of radius 'R', breaks into 'n' droplets of equal size, the radius 'r' of each droplet is ______.
______ is the instrument used to measure atmospheric pressure.
On each 1 m2 of surface, the force acting is ______.
______ is a device for measuring atmospheric pressure without the use of liquids.
The barometer works by balancing the Mercury in the glass tube along with the outside air pressure.
Match the following.
| Column I | Column II |
| a) Barometer | i) reduce friction |
| b) Increasing area of contact | ii) Atmospheric pressure |
| c) Decreasing area of contact | iii) cause of friction |
| d) Lubricants | iv) increases friction |
| e) Irregular surface | v) decreases friction |
